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Questions tagged [colors]

Questions related to screen/app colour problems on display devices running Ubuntu.

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How to set default foreground color in Bash shell?

I found the set default background color code from @user313992's answer: On xterm-like terminal emulators: This sets the background to a light green without having to clear the screen: printf %b '\e]...
stackbiz's user avatar
  • 415
1 vote
0 answers
57 views

Wrong colors in GNOME Image Viewer [closed]

Here is a Python code that creates a plot with 6 defined colors and saves it in a PNG file: import matplotlib as mpl import matplotlib.pyplot as plt import matplotlib.cm as cm import numpy as np # ...
TVG's user avatar
  • 387
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0 answers
16 views

What is the config file that determines colors for the save dialog box?

I'm running Kubuntu. The theme is Edna. I know I've changed something somewhere, but my save dialog box looks like this: The icons for up, views, sorting, etc are all grey and almost match the ...
Steve's user avatar
  • 103
0 votes
1 answer
63 views

Colors messed up for no reasons

I've used Ubuntu for a few month now without any issues. Today, as I boot, I can see that the orange logo on the login screen is blue. When I log-in, I can see that anything supposed to be blue (such ...
user1858176's user avatar
0 votes
0 answers
36 views

Color range lowered after enabling Nvidia GPU

Distro: Ubuntu 22.04 with KDE Plasma 5 Hardware: RTX 3050 I have a laptop that has a RTX 3050 GPU and I'm running Ubuntu 22.04 with KDE Plasma. I had previously disabled the RTX 3050 and was running ...
jetpandas9's user avatar
3 votes
1 answer
176 views

color variable does not work with PS1 assignment in bashrc file

below is my current PS string in .bashrc PS1='${debian_chroot:+($debian_chroot)}\[\033[00;37m\]\u@\h\[\033[01;32m\]:\[\033[01;34m\]\w\[\033[01;31m\] $(parse_git_branch)\[\033[00m\]\$ which works fine ...
xkeshav's user avatar
  • 665
-1 votes
2 answers
77 views

Ubuntu 22 and 23 gray colors are turned white

I was using ubuntu 23.10 and after a simple Ubuntu update, the colors for gray tones was broken and now all gray tones looks like white as you can see in this screen shot from https://imagecolorpicker....
Jacob's user avatar
  • 11
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0 answers
45 views

intermittent washed-out colors when booting Ubuntu 22.04

Sometimes when I boot Ubuntu 22.04, the colors are washed out and distorted, print is unreadable, and graphics are unstable. Sometimes it boots to a black screen. Other times it boots just fine. ...
Martin Holsinger's user avatar
0 votes
1 answer
77 views

changing grep command --color from red to another color [duplicate]

I'm searching from the file using grep command with particular pattern, sysadmin@localhost:~$ grep bash /etc/passwd which return the output like below root:x:0:0:root:/root:/bin/bash ...
SpiderMan's user avatar
0 votes
0 answers
164 views

how can i make my linux vibrant?

I used everything to change my display color settings. I didn't tried any software like vibrant-cli and vibrantLinux because I am new to Linux. Can someone help me?
Asazaraw's user avatar
5 votes
2 answers
571 views

highlighting specific lines in different colors when starting a scipt with printf

I am using a bash script. When I launch my script, how can I highlight specific lines on the output? For example, all lines with "Enable" should be green, all lines with "Disable" ...
gabberhead's user avatar
0 votes
0 answers
33 views

How to change the background colour of directories in a mounted folder [duplicate]

I have just installed Ubuntu 22.04 in VirtualBox. I have a mounted folder, and the directories in this folder have a background color of green as shown in the image. In my profile I have: if [ "$...
user3478415's user avatar
2 votes
1 answer
339 views

Can I change the WSL terminal background color from the own terminal command line?

I use multiple WSL Ubuntu terminals from which I connect to different remote machines. It can get messy when I have many windows open to distinguish which window is for each machine, so I change the ...
Julio Martínez's user avatar
0 votes
0 answers
61 views

Text not appearing in Box

The text is not appearing in some dialog boxes. While terminal and file names are properly showing. Can anyone have idea about it? I attached picture here. I tried soo much but unable to resolve.. ...
Faizan Elahi's user avatar
2 votes
0 answers
139 views

Change GNOME Activities Overview Highlight Color

The GNOME activities overview allows you to select items, all the while using a gray background, and a dark gray highlight to indicate the item selected (see picture below Utilities). There is almost ...
jophuh's user avatar
  • 179
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0 answers
67 views

Colour profiles not working thoughout

During the installation of the update from 23.04 to 22.10, the installer crashed. I managed to rescue the situation and update it to 23.10, however, this section of Gnome does not change the colour ...
markrich's user avatar
  • 1,410
0 votes
1 answer
55 views

Meaning of night light color temperature

Does "night light" block all of the blue lights? or is it related to the color temperature? What is the purpose of color temperature? Does color temperature gradually block the blue lights, ...
Towsif Ahamed Labib's user avatar
0 votes
1 answer
53 views

Gnome screenrulter has no color

Since installing Ubuntu 22.04 (plus all updates) the gnome desktop screenruler has lost its color. I can restore it by clicking on its settings and choosing a color but it should automatically find a ...
Richard's user avatar
0 votes
1 answer
31 views

Weird Arrow elbems showing up in Caja

Wierd Arrow emblems are showing up in Caja, also in ls in Terminal these directory are highlighted light blue, but it seems that they are not a link at all. Output of ls: Gui: I'm using Ubuntu MATE ...
someuser's user avatar
0 votes
0 answers
28 views

Not all font and colour schemas are selectable in Kate

On my Kate configuration directory (~/.local/share/org.kde.syntax-highlighting/syntax/) I have files such as: octave.xml, opencl.xml, orgmode.xml, ... However I have no way to see them when trying to ...
Pietro's user avatar
  • 125
-1 votes
1 answer
100 views

Ubuntu 23.04. Irregular boundaries between the colors in photo

I have bought a Lenovo IdeaCentre i3-12 desktop with an onboard Intel UHD graphics 730. Some photos show some grainy and irregular colors in (typically) a high contrast area. E.g. some green and ...
Steen's user avatar
  • 9
0 votes
1 answer
92 views

monitor calibration fail

To color calibrate a monitor, I use a color measuring tool that shows up as USB device X-Rite, Inc. i1 Display Pro. It works on one system (22.04), on another it fails at the first test patch: ...
minyves's user avatar
  • 334
1 vote
1 answer
573 views

Color Calibration Broke After Upgrade From 18 to 22: Enabling / Disabling / Changing Color Profile Does Nothing

I had set up a color profile on my old Ubuntu installation, which was version 18, and it worked great. I didn't do custom calibration, I just used the provided profile for my ThinkPad T580, and the ...
cazort's user avatar
  • 160
1 vote
0 answers
97 views

HDMI Extender with Ubuntu has Colour Problem – Other OS works fine

I have installed a Mini HDMI Cat5e/6 Extender (Digitech AC-1726) onto my Ubuntu 22.04 LTS system to allow a second monitor to be operated in the next room. Everything is working except that there is ...
Timbergetter's user avatar
0 votes
0 answers
110 views

Make selection color in Firefox match the general Ubuntu/GNOME theme

The selection color (highlight when selecting text) in most apps is a pleasant shade of orange that matches the rest of the desktop. However, recently Firefox stopped following this convention and ...
Damn Terminal's user avatar
1 vote
0 answers
65 views

How do I make dialog boxes readable on 23.04 and change menu type?

After installing a 1TB IDE (not SATA) SSD, I did a fresh install of Ubuntu 23.04 (just Ubuntu, not Kubuntu, Lubuntu or any other flavor) on an old laptop and selected the Light theme during ...
DonP's user avatar
  • 432
1 vote
1 answer
1k views

How does Firefox detect light/dark theme change on KDE systems?

I have a few cron jobs which switch between light and dark themes automatically on my KDE system (for those interested, there's the lookandfeeltool where I simply switch between global light and dark ...
J-Cake's user avatar
  • 179
1 vote
0 answers
35 views

Is there a WACG color contrast checker for terminal?

I searched and found this post that shows how to install a color contrast checker for Ubuntu (for WACG). However, I want to be able to automate the color-checking process as part of a CI/CD pipeline. ...
Saeed Neamati's user avatar
0 votes
1 answer
2k views

Setting the color for warnings from journalctl output

The journalctl command will color-code its messages. From its manual page: When outputting to a tty, lines are colored according to priority: lines of level ERROR and higher are colored red; lines of ...
Bram's user avatar
  • 2,641
1 vote
1 answer
274 views

Folder color not working

I've installed folder color in Ubuntu 20.04, GNOME using: sudo add-apt-repository ppa:costales/folder-color sudo apt install folder-color -y nautilus -q but it only allows me to change emblems, not ...
geofisue's user avatar
  • 111
1 vote
2 answers
2k views

How do I script changing the color scheme in gnome-terminal?

How do I script changing from the light mode to the dark mode? In it GUI I do this: preferences>profiles>Unnamed>Colors>Bultin-in schemes (here I choose either black-on-white or white-on-...
John Smith's user avatar
1 vote
1 answer
908 views

How to make redshift even more red in Ubuntu MATE 22.04? [duplicate]

I am using Ubuntu MATE 22.04. Towards night, redshift sets a color temperature of 4500K. How to reduce the color temperature even further? Unlike the Night Light feature in GNOME/KDE, Redshift does ...
Archisman Panigrahi's user avatar
2 votes
0 answers
475 views

How to change color in the app switch window in Ubuntu 22.04?

When I switch between applications using ALT + TAB, a small window appears in the middle of the screen and lets me choose another application. My problem is that the color of the highlighted ...
user153245's user avatar
1 vote
0 answers
32 views

What does a blue Wavelan plugin icon mean?

The Wavelan icon on my panel is sometimes blue and sometimes white. I am just curious as to what the two colors mean, or if there are other colors that ever show up. I am running 64-bit Xubuntu 22.04....
massasauga's user avatar
1 vote
0 answers
91 views

Change Blank Space Color of Scaled Wallpaper

If you set your wallpaper that is not the same scale as your screen, and set it to scaled mode on gnome-tweaks. You get a wallpaper with blank spaces. In windows, this blank spaces could be filled ...
Ali Ahmad Fahrezy's user avatar
1 vote
1 answer
567 views

What does blue highlighted text mean?

This is what I see when I run ls in /var/mail: I am asking about those vbk files in particular. Google is telling me that it's an executable, but it can't be. They should be log files. All the other ...
hijimbob's user avatar
0 votes
0 answers
608 views

Is there an alternative to Redshift that allows for more customization like exact times where the display starts to shift color & transition duration?

I am very new to Linux, so I apologize if my question is obvious to many people. I don't know if this is relevant, since I am still learning, but I am using the distro "pop! OS", which is ...
baksoBoy's user avatar
-1 votes
1 answer
374 views

The second screen with hdmi displays incorrect colors

When I connect a monitor by HDMI cable with my laptop a faced a problem with Color that not compatible with laptop screen.
ElsayedDev's user avatar
1 vote
0 answers
375 views

Washed out colors on Ubuntu 20.04?

I have a seemingly common issue with washed out colors on Ubuntu. I'm using HDMI 2.1 and things were fine until today, and all of the sudden after disconnecting the cable and reconnecting colors ...
Edy Bourne's user avatar
0 votes
0 answers
582 views

Accent Colors not Changing Shell Theme and Certain Applications

Hello everyone I just upgraded to 22.04 LTS and I noticed that the accent color changer only applies to the application theme and icon theme, but not the GNOME UI Shell theme. The corresponding shell ...
AlexFullinator's user avatar
0 votes
2 answers
5k views

How to change display pixel format from YCbCr 4:4:4 to Full RGB 4:4:4

My monitor is displaying everything in pink-green color I had same issue in Windows but fixed it by changing display's pixel format from YCbCr 4:4:4 to Full RGB 4:4:4 in AMD Radeon software. But how ...
Habibur Rahman's user avatar
1 vote
0 answers
353 views

How can I reset the Cinnamon Desktop to its default colour scheme?

Shortly after upgrading to Ubuntu 22.10 with Cinnamon Desktop, I somehow inadvertently ended up with a rather tacky blue-green tinted colour theme, which I have been unable to change. The tint is ...
alchap's user avatar
  • 51
8 votes
2 answers
5k views

How to have light theme with dark window titlebar on Ubuntu 22.04?

I have updated my Ubuntu to 22.04.1 version and with this new version of gnome I can't change the color of Window Title Bar. So, in the older version, the Yaru theme (example) the title bar looks like:...
pauloh's user avatar
  • 183
0 votes
0 answers
55 views

Can I change the character colors that is used in ctags candidate listing?

When I use a certain theme in my 'terminator' setting, the tag candidate list uses colors that I don't want so I can't see them clearly when I'm working remotely. The figure is like this. How can I ...
Chan Kim's user avatar
  • 2,121
2 votes
0 answers
640 views

Can I change the mouse pointer color?

I'm faced with a small but long-time nuisance. I frequently work remote from home using google remote desktop. I connect to my windows 10 PC and there I use vnc client to connect to my ubuntu 20.04 ...
Chan Kim's user avatar
  • 2,121
-1 votes
1 answer
608 views

These icons are automatically changed like this. How can I remove these and replace original icon? in ubuntu 22.04.1

I want to reset it back to the way it was.
Thet Pai's user avatar
0 votes
1 answer
327 views

Color saturation issue with Ubuntu 22.04 (and lower versions) + Samsung Smart TV

I'm having some display issues with the next software and hardware combinations: OS: Ubuntu 22.04 (and other versions of Ubuntu) Graphics card: AMD Radeon RX 5500 XT Screen: Samsung UE32N4300 All ...
Dani J. Coello's user avatar
1 vote
1 answer
2k views

Why are my screen colors slightly more saturated on X11 than Wayland?

I'm running Ubuntu 22.04.1 on my 2012 MacBook Air 11 inch with a Core i7-3667U (with Intel integrated graphics). I use a custom ICC color profile when running Linux because the default colors are very ...
ARS's user avatar
  • 21
2 votes
1 answer
2k views

How can I get a proper dark mode working for Kate?

I can't seem to be able to get a proper dark mode working for Kate. The system is in dark mode, as configured in Settings -> Appearance -> Style. In Kate, the default color scheme is Breeze Dark,...
Tuomas's user avatar
  • 21
1 vote
1 answer
376 views

Any way to bring back the accent colored close button from 20.04 and previous in newer versions?

Accented Close Button in 20.04 Unaccented close button on 22.04 I was excited about the added ability to change the accent color without needing a custom theme, one of the prominent spots to see said ...
user3113138's user avatar

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